Effect of Blending Degree between Virgin and Aged Binder on Pavement Performance of Recycled Asphalt Mixture with High RAP Content

Table 4

Performance properties of regenerated RAP binder.

Indexes	Units	Adding content of rejuvenator					Technical requirements of AH-70 asphalt binder
		0	3%	4%	5%	6%
Viscosity (25°C)	Pa·s	1.362	0.953	0.696	0.527	0.263	—
Ductility (15°C, 5 cm/min)	cm	19.2	53.8	80.5	143.2	193.5	≥100
Penetration (25°C, 5 s, 100 g)	0.1 mm	27.2	49.5	56.3	69.5	76.3	60∼80
Softening point	°C	58.7	54.6	51.3	48.7	44.2	≥46